Steam-generator flue.



Patented June 29, 1909.

2 SHEETS-SHEET 1.

C. E. JENKINS.

STEAM GENERATOR FLUE.

LPPLIoATloN FILED AUG. 27, 1901.

5:4112," toa o. F. JENKINS. Y STEAM GENERATOR PLUE.

APPLICATION FILED AUG. 27, 1901.

926,700. Patented June 29, 1909. 2 SHEETS-SHEET 2.

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CHARLES F. JENKINS, OF IVASIIINGTON, DISTRICT OF COLUMBIA, ASSICNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NE\\'Y YORK.

STE AT/I-GE NERATOR FLUE Specification of Letters Patent.

Patented .Tune 29, 1909.

T o all whom t may concern:

Be it known that I, CnAnLns FnANers JENKINS, a citizen ol: the United States, residing at Washington in the District ol Columbia, have invented certain new and useful Improvements in Steam-Generator Flues, of which the. following is a specification.

IIeretolore great ditliculty has been experienced in properly disposing olf the products of combustion in motor vehicles and at the same time preventing the down draits of wind from extinguishing the tire. To avoid this result and secure other advantages I construct the tlues connected with the boiler as lully set forth hereinafter and as illustrated in the accompanying drawings, in which Figure 1 is a longitudinal sectional elevation ol sufficient of a motor vehicle to illustrate my invention: Fig. 2 is a transverse section illustrating a dillerent arrangement ol Hues; Fig. 3, is a partial longitudinal section with parts in elevation illustrating another arrangement; and Fig. 4, is a longitudinal section illustrating another arrangement with a carriage style oii vehicle.

The body a of the vehicle may be of any suitable construction, as a runabout body, Figs. 1, 2 and 3, or a covered wagon body as in Fig. 4.

The generator l) may bc of any required character either 'fire tube or water tube witlv a burner c below the same and a chamber :r

inclosed by a suitable hood or casing d in osition to receive the products ol comustion.

I/Vith the hood or casing d is connected a flue 7c which opens at one end into the boiler casing, and at the other y, to the atmosphere, and between this end and the casing, the llue has an opening fw which communicates with a iluef open at the lower end to the atmos here.

The opening 'y as described would allow lor the escape of the iirc gases or products ol" combustion in 1nindling a fire or when the vehicle is at rest, but down currents 'of air would find their way beneath the hood CZ and tend to flow back or extinguish the fire. I therefore arrange adjacent the opening oetween the ends vof the flue 7c a deilector plate t preferably extending into the iluef, dividing the openingw into two parts or openings, and so situated that air currents or pu fls of wind passing inward through the opening /g/ will not pass to the hood but will be deflected downward, thus not only preventing the passage of currents back to the lire but also by passing downward tending to draw the ilre gases outward l'rom the hood into the second or down 'llueji Vi'vhen there are no such down currents, the burned gases may readily escape by passing beneath the edge ol2 the dellector t' and out at the opening 1/I, so there no tendency to smother the `lire, but on the contrary, an up drai't is maintained which insures its continuance. The drlleetor is arranged to cooperate. with the adjacent parts to form an orilice between the hood and [lue]` which serves to increase the suction or draft on the burner due to the passage. oli air currents through the lluef.

It will he seen that the strong air currents so objectionable with ordinary constructions are a material mivantage with my improved construction and I therefore take advantage of this in seine cases to place the Ilue with the opening g/ at the lront so that in moving forward the air is forcibly directed into the opening y and downward in a way to materially increase the dralt.

Generally the exhaust steam is the means of directing the products ol combustion downward through thc ilue f when the vehicle is running. In such cases I place the exhaust nozzle 7iy back ol the plate ft so as to draw out the gases from beneath the hood and liorcc them downward, the air passing in at the opening 2/ and facilitating tho condensation ol the exhaust steam.

'lhc delloetor extends to thc sides of both branches olz the llue so that there can be no leakage past its edges, and the branch f is prolerably smaller than the opening 10, as in Fig. l, and its sides converge or (lare from said opening so as to secure a more restricted passage below the opening and a greater velocity ol" Vllow of the gases. The dcilector or wall is also curved and projects into and to this extent restricts the dimension ol the lluc f.

In the arrangement shown in Fig. 3 the boiler or generator is placed at the liront end of the vehicle with the [luc f extending downward from the lluc /r close to the front Ot' the generator. The Ihre 7u is thus made as short as possible and is provided with the dctlector t which divides the opening bctween thc two Vllues into vtwo parts and per forms the same functions as in the other arrangements of the invention.

The hood or casing itself may constitute` the horizontal part of the tlue as in Fig. 4, and communicate directly with the flue f and also with the vertical ilue z to conduct the gases, when standing or when tiring up, through the body a of a vehicle.

All of the arrangements of my invention which l have shown and described are not claimed herein because some of them will be found in my divisional application, Serial No. 350,327, iiled Jan. 2, 1907, pursuant to a requirement of division made by the U. S. Patent Oi'lice under rules el and l2 of Office practice.

ln accordance with the provisions of the patent statutes, i have described the principle of operation oi' my invention, together with the apparatus which l now consider` to represent the best embodiment thereof; but i desire to have it understood that the apparatus shown is only illustrative, and that the invention can be carried out by other means.

T{""fithout limiting myself to the precise construction and arrangements shown, l claim:

l. rlihe combination with a motor vehicle, its engine and boiler, of a chamber above the boiler having upper and lower openings, the upper opening in a position to receive horizontal air currents, and a deflecting plate arranged opposite the upper opening but in position to permit the gases to pass to the opening from the chamber and to de'llelct downward, air passing into the upper opening.

2. The combination with a motor vehicle,

its engine, exhaust pipe and boiler, of a chamber above the boiler having upper and lower openings, the upper opening in a position to receive horizontal air currents, a deflecting plate arranged opposite the upper opening but in position to deflect to the lower opening air passing into the upper opening and to permit the gases to pass in the opposite direction to the upper opening from the chamber, and a nozzle connected with the exhaust pipe and arranged to increase the draft on the boiler. i 3. rihe combination with the body and the boiler of a motor vehicle, ot a chamber above the boiler, a flue extending downward from said chamber and provided with an opening near the top, a ilue extending from the opening to the outside ot the vehicle and open to receive horizontal air currents, and a deiiecting plate opposite said opening arranged to dei'lect air passing inward through the opening downward to the down flue and to permit the i'low ot gases from the boiler.

4. rhe combination with the body and boiler ot a motor vehicle, oi a chamber above the boiler, a iiue extending downward from said chamber and provided with an opening near the top, a flue extending from the openingto the outside of the vehicle to receive horizontal air currents, a deflecting plate opposite said opening arranged to deiiect downward air passing inward through said opening to said flue, and an exhaust pipe arranged to project the exhaust steam downward back of said plate.

5. The combination with a motor vehicle, ol a boiler, a chamber above the same, a flue extending downward from said chamber, an opening at one side or the i'lue through which air ilowing horizontally can pass inward and the products of combustion can pass laterally from said chamber, and a delecting plate above the flue between the opening and the chamber to deflect downward into the ilue the air passing into the said opening.

6. In combination, a boiler, a burner, a flue wnich at one end opens into the boilercasing and at the other end to the atmosphere, the said flue being provided with an opening located between the boiler and the outer end, and a detlector which is mounted in the iiue at a point adjacent to-the opening for temporarily detlecting the hre-gases in a :fr

lateral direction from their path as Ythey pass to atmosphere, and tor preventing gusts or puits of wind from entering the boiler by causing them to pass through the opening.

7. In combination, a boiler, a burner, a flue which opens at one end into the boilercasing, and at the other end to the atmosphere, the said Vflue being provided with an opening located between the Yboiler and the outer end, a deflector which is mounted in the flue at a point adjacent to the opening, and a second iiue in permanent and free communication with the first at a point opposite the dei'lector and permanentlyopen at the lower end, so that when a forced draft is created the fire-gases and air will Yfreely mingle in the second flue.

8. in combination, a boiler, a burner, a ilue for carrying oil the iire gases, a second flue opening into the first at one end and permanently open to the atmosphere at the other, and a deilector which extends into the second i'lue and detlects gases at that poi-nt, the said de'flector also forming a restriction in the second flue.

9, The combination with a vehicle, of a boiler and a flue having two branches withY free openings, one for natural and the other for forced draft, with a deilector permanently mounted at the junction of the branches to prevent air currents from passing to the boiler.

10. In combination, a boiler, a burner, a flue which acts as a natural draft, a second flue opening into the irst at a point between the ends, a deliector, and a connection for discharging steam into the second flue.

l1. The combination with a vehicle, of a boiler and a flue having two branches with free openings, one tor natural and the .other lil() for forced draft, and one below the body and the other' at one side thereof, with a deflector permanently mounted at the junction of the branches, to prevent air currents from passing to the boiler.

12. In combination, a boiler, a burner, a flue leading from the boiler and provided with two free openings, a deflector projecting into one of the openings, and a steam-jet so located that it draws fire-gases from the boiler and air from one of the flue openings and discharges them through the second flueopening.

13. As an article of manufacture, a boileriiue comprising horizontal and vertical portions opening into each other, each of said portions having an end that is in permanent and unrestricted communication with the atmosphere, and a deflector which is secured to one portion of the flue and extends into the other, the said deflector being arranged to make a tight t with the sides of both portions and also to form a slight restriction in the vertical ue.

14. In combination, a casing containing a re chamber, an open-ended flue communieating therewith which forms a double outlet for the products of combustion, one end bethe casing and for causing them to draw oli' the products of combustion therefrom which device permits the products of combustion to escape through the inlet when air currents are absent.

15. The combination with the body and boiler of a motor vehicle, of a chamber adj acent one end of the boiler, a downwardly eX- tending flue having two openings adjacent its upper end, one of the openings connecting it with the chamber, a wall between the two openings, and a flue connecting with the other opening and extending to the outside of the vehicle so that air currents in this llue pass downward through the first flue and tend to draw the contents of the chamber through the opening into it.

In testimony whereof I have signed my .z

name to this specification in the presence of two subscribing witnesses.

CHAS. F. JENKINS. W'itnesses:

A. E. T. HANsMANN, II. M. GILLMAN, Jr. 

